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    • 2. 发明公开
    • 형광체 분말 및 그의 제조 방법
    • 磷肥粉及其制备方法
    • KR1020120096221A
    • 2012-08-30
    • KR1020110015495
    • 2011-02-22
    • 성균관대학교산학협력단
    • 윤대호조덕수타카키마사키최태영송영현
    • C09K11/59C09K11/08H01J17/49
    • C09K11/59C09K11/0883H01J17/49Y02B20/181
    • PURPOSE: A manufacturing method of phosphor powder is provided to provide oxynitride-based or nitride-based phosphor powder emitting blue to yellow excitation light in a range of blue ray to ultra violet ray, and having excellent luminous efficiency and temperature performance even in high temperatures. CONSTITUTION: A manufacturing method of phosphor powder comprises a step of obtaining precursor by impregnating aqueous solution comprising divalent metal salt for forming Si-based oxynitride group through hydrothermal synthesis at 80-200 °C; and a step of primary sintering the precursor at 300-800 °C under oxygen-containing atmosphere; a step of secondary sintering under ammonia- or nitrogen-containing atmosphere at 900-1400 °C.
    • 目的:提供荧光体粉末的制造方法,以提供在蓝光至紫外线范围内发射蓝色至黄色激发光的氮氧化物基或氮化物系荧光体粉末,即使在高温下也具有优异的发光效率和温度性能 。 构成:荧光体粉末的制造方法包括通过在80〜200℃下通过水热合成浸渍含有二价金属盐的水溶液以形成Si系氮氧化物基团而获得前体的工序; 以及在含氧气氛下在300-800℃下初始烧结前体的步骤; 在900-1400℃的氨水或含氮气氛下二次烧结的步骤。